Not sure about "companions,"
Check out Back to the Basics
planting is based around the idea that certain plants can benefit
others when planted next to, or close to one another.
Companion planting exists to benefit certain plants by giving them pest
control, naturally without the need to use chemicals, and in some cases
they can give a higher crop yield
Check out Mary's Top 10 Crops with Companion varieties!
Tomatoes Asparagus, basil, bean, Borage, cucumber, lettuce, marigold, nasturtium, onion, peas, peppers
Peppers Cucumbers, eggplant, Tomato, Swiss chard and squash. Herbs to plant near them include: basil, Borage, oregano and rosemary.
Beans, corn, cucumbers, icicle radishes, melon, onions, pumpkin, Borage, Dill, Marigolds, Nasturtium, Oregano
Beets, brassicas,Carrots, celery, chards, corn, Cucumber, eggplant, peas and radish
Beans, Corn, peas, beets, radishes, carrots,
Dill and Nasturtiums
Beans, peas, peppers, spinach, tarragon,
thyme and marigold
beet, bush beans, pole beans, carrots, cucumber, lettuce, melons,
nasturtium, parsnip, peas, spinach and members of the squash family.
Bean, cabbage family, tomato, onion and roses
Beans, cucumber, melons, morning glory, parsley, peas, potato, pumpkin, squash and sunflower